Once a spell checking dictionary is installed, CafeTran lets you correct spelling mistakes automatically as you type.
When you make a mistake during typing, the misspelled word is red-underlined. Press the CTRL+SPACE shortcut in the keyboard to replace it with the correct word. If the first suggestion is still not correct, keep pressing the shortcut until you get the right word.
You can also right-click at the misspelled word or use the shortcut displayed in the menu Edit > Show alternative spelling to pop up the list with the suggested words. Selecting a word in the list replaces the wrong word at the cursor.